Lock



Jan. 4, 1949. T. VKASKOURAS LOCK Filed Oct. 1'7, 1945 2 She'ets-Sheet 1 v R m w w Jan. 4, 1949. T. KASKOURAS LOCK 2 Sheets-Sheet 2 Filed Oct. 17,' 1945 INV'NT OR with the lock mechanism.

side.

hand side thereof.

Patented Jan. 4, 1949 PATENT F B I Thomas Kaskouras, Chicago, 111. Application October 17, 1945; Serial No. 622,905

1 This invention relates to safety devices, to-wit: Locks, which may be placed upon knobs to prevent the knobs from turningetc.

I have shown a device, which may be locked by a combination lock, and which is large enough to cover the knob of the door, so that the knob cannot be grasped, and also, there are no screws or other means on the covering device whereby the covering device can be removed.

Another object is the provision of such a device as willbe simple tooperate' and relatively inexpensive to produce. U

'Otherobjects andadvan'tages will appear and be brought out, more fully in the following specification, reference being had toithe accompanying drawings, i'n'fwhich: Fig. 1 is a vertical view of the lock, with the 4 knob shown in dotted lines.

Fig. 2 is a'frontview of the same. Fig. 3 is a vertical. section taken on the line 3-3 of Fig. 4.

Fig. 4 is a side elevation with parts dotted in. Fig. 4a is a planview of a key suitable for use 'Fig. 5 is a perspective of the device, shown open and adapted to be placed aroundla knob. Fig. 6 is a view looking into one of the sections, the combination lock, jetcl, being removed Fig. 6a is an ,endview of the section seen in Fig. 6, as seen from the right-hand. side thereof.

6 Claims. (01'. 70-211) Fig. 12, as seen from the right-hand side thereof.

Fig. 13 is a side elevational view of the locking nut.

1 selected for illustration the preferred form of my invention, I have shown a lock I5, having a left segment l6 and a rightsegment H, as the drawings are viewed.

Attached to each of these segments is a neck i'portion l8, so that the entire device is adapted to cover theknob and its handle, as shown in Fig. 1, with the two segments to be locked by a combination look, as will lat-er appear.

When the two segments are put together, they form achamber IQ for the knob.

Each of the sections l6, n has a cut-out 2|, 2m

. respectively as best illustrated in Figs. 6 and 7,

to accommodate the auxiliary or combination locking means, etc.

Fig. 7 is a view of the opposite half section to i that shown in Fig. 6.

Fig. 7a isflan end or edge view of, the section seen in Fig. 7 as seenfrom the right-hand side thereof. l

. Fig; 8 shows a plan 'view of the bottom plate.

Fig. 8a is an end'or edge view of the bottom plate shown in Fig. 8, as seen from the righthandside thereof.; 1 j, V

Fig. 9 is a-planview ofthe intermediate plate.

" Fig. 9a is an end or edge viewpithe plate shown in; Fig. 9, as seen fromthe right-hand Fig. 10 is a plan view of the top plate. 1 i

; Fig. 10a an end or edge view of the plat shown in Fig. 10, as seen from the right-hand side. 1

. Fig. 11 is a side elevationalview of. the combination barrel. 1 1 1 1 Fig. 11a is an end view of the combination barrel seen in Fig. 11, asseen from the right- Fig. 12 is a nae elevationalview of the locking sleeve. 1 I

I have shown a sliding keeper 22, consisting of upper plate 23 and an intermediate plate 24, and a lower plate, 25, located in or adjacent to said cut-out 2|, all as clearly shown in Figs. 3, 8, 9, and 10. H

The upper plate 23 is provided with graduations 26, as shown in Fig. 2, and an opening 21. The intermediate plate 24. also has an opening 28, registering with the opening 21, and the lower plate 25 has an opening 29, registering with the Fig. 12ais anend view of. the sleeve shown i other two openings.

The opening 28 in the intermediate plate 24 is slightly larger than the openings 21 and 29, in the upper plate 23, and the lower plate 25, respectively.

1 .Adapted to be received in the openings 21, 28 and, is a combination lock 30, comprising a barrel 3|, as shown in Fig. 11, and a locking sleeve 32, shown in Fig. 12, and a locking nut 33, shown in Fig. 13. 1 The locking sleeve 32 has a slot 34 and a shouldered, projecting shank 35.

The locking sleeve 32 is adapted to be received in a circular recess 31. provided in the lower, or left, side of the barrel 3|, as the drawing is viewed in Fig. 11, with the shank 35 of the looking sleeve 32 projecting through the central opening 36 in the barrel 3|. 1

The right-hand side of barrel 3| is also provided with a cut-out or circular recessed portion ,38 andwith a slot-39, as viewed in Fig. 1

,- The left-hand side .(Fig. 11) of the barrel also has a slot 40. q

The nut 33 has a bore 4|, adapted to receive the shank 35 in a tight-pressed fit, so as to hold the three parts together, to-wit: The barrel 3|, locking sleeve 32 and nut 33.

The nut 33 is adapted to be received in the recess 38, and the nut 33 has also a slot 42.

The under or left side of the barrel 3| is adapted to fit into the opening 21 of the upper plate 23.

The barrel :3! may have anyintegral stop collar 43, against which the top plate 23 is adapted to abut.

The barrel, with its stop collar 43, just registers with the larger opening 28 of the intermediate plate 24, and is located therein.

The barrel is also located in the opening 29 of the bottom plate 25, and all three of the plates, 23, 24 and 25, are nested in the cut-outs 2| and 2 I a, as shown in Fig. 3.

As shown in Fig. 6, one of the section .in the cut-out 2| has small fins 44 and large fins 4'5,

adapted to fit in a'slot 46 in the lowerplate 25.

The intermediate plate 24 also has cut-outs '4'! at two opposite edges, as shown in Fig. 19,;toaccommodate pins 48, shown in'Fig. 6.

The three plates, 23, 24 and 25 fhave apertures 49a, 49b and 49c,'respectively.

Aperture 49a, shownin Fig. 10, is threaded, and

all the apertures are adapted to receive a headed machine screw 50, to lock the parts together, as shown in Figs. 1, 2, 3, 4 and 5.

It will be understood that in-order tp-insertthe pins -48 between the'llpper and "lower plates, and

- i nsid projections .5l on the plate 2.4, it will The necessary to "lift either the top or bottom plate enough to slide the pins in-place,

Also shown is a key 52, which may be adapted to line up the slots 42 and 38 in varous wayswith 'the-graduations '2'6'on the topplate 23.

The slots may be cut at various points in the nut, thebarrel and sleeve.

In the form shown, the key will line up :the

slots 38 and 42 'at'.5 land :3 in the graduations This will cause the slots 34 land 40 to line 'up topermit the plates 23,24 and 2-5 to-bepulled'to the left in the section I], as Fig. 2 is viewed, thereby permitting the section "I? to 'Slide'to the right so as to permit the two segments to be pulled apart, as shown in Fig. 5.

On the other-hand, if the slots 34 and 5140 had not been so lined up, then it would have beenimpossible to pull the barrel 3| and the locking sleeve 32 to the left,-look ing at Fig. 2, by-mea ns of the plates 23, 24 and-25.

Thus, in order to open the segments, it is necessary to line up the slots 38 arr- 1542.

It is thought that the operation will be clear without further explanatiombut, in .briehth two sections are separated to start with, as 'Fig. 5,

and then placed over the knob, and the right- "hand section, looking at Fig. 5, is moved to the left, looking at Fig, 5, with the pins sl-iding'in the cut-out 41 of the intermediate plate. Whenxthe segments are brought together, the slots 38 and 42, which have been lined up, may be "put out of line :by the key, or other means, and then the fins will be obstructed :b the barrel and the locking sleeve, .and it will not the possible to .open the lock.

:said door knob and comprising a pair of sections,

amember connecting said sections and having means slidably receivingcoacting means fastened ztoithemther of the sections, and means arranged on the member and efiective to lock the pair of sections against relative movement.

,2. Ida device of the kind described and for use with a door knob, a casing operable to enclose said door knob andincludingapair of relatively .movable sections, means connecting said sections, slotted means arranged on said first-mentioned *means and coactaible with .instrumentalities secured to ,one :of the sections, and a lock in the first-mentioned means, said lock being effective to secure the pair of sections against relative movement.

3. In a device ofithe'kind described and for use with a doorknob, a casing openable to enclose said door knob, and including ;a pairof relatively movable sections, a sectional ,plate jibining said sections, said plate being Ffasjtened to pne .off the s i ns and .slidably connected to the other .o the sections, and neans including gallock arranged in the plate, said meansibeing fifiective itamtevent relatile movement of one section relativel to the "other.

4. In a device or the character described and o use with a door knob. a casi g operable to enclose and optionally uncover said door knob, said casing includin a ;pair of sections 's'liiiable one relatively to'the other, means connecting :said sections and having slots fformed thereon, other means projecting from one of the sections and "slidabl'y engaged f'il'hsaid slots, and a combination lock ioperably mounted "in the'jfirsflt-mentioned means and effective to prevent movement of said other means in said slots, whereby'translati'onal "movement of one section relatively to the other section may be prevented'when desired.

5. Ina device of "the-character :d'escribed and for use with a door knob, a casing operable to enclose said door knob and "including :a pair of relatively movable sections, means operably:con-

necting the section andincluding a combination lock, said means having a plurality oTflongitudinal-lyextendi-ng slots arranged spaced relation, and elements projecting fromone of said sections and coactable with said slots and combination lock, @whereby the pair-01f "sections may be 'moved relatively to each other and locked in a :position efiective to prevent access totsaid door knob.

6. In a device of the kind described and {for use withza doorknob, a casing norm-ally enclosing ssaid knob but operable to give-access to the knob when desired, .said casing "including a pair of sections translationally movable one relatively to the other, means iimmovably hastened to one of the sections and. slldably connected to the other of the sections, and azlock arrangedrin :said means .andefiectiye to prevent and optionally to permit relative slidin movement of thel'lastemehtibned section to the fir t'memienedsection- THOMAS "(References on following page) 5 REFERENCES CITED The following references are of record in the file of this patent:

\ UNITED STATES PATENTS Number Name Date 200,599 Beachman Feb. 26, 1878 274,346 Laubenberger Mar. 20, 1883 Number Number Great Britain Nov. 26, 1931 

